Are you trying to find vibrating alarm clocks among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling vibrating alarm clocks on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 21 hours of research and did 46 vibrating alarm clocks tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best vibrating alarm clocks you can buy today
- Portable Vibrating Alarm Clock for Heavy Sleepers Adults and Hard of Hearing: this wireless bed shaker alarm clock takes no risk of connection loose like other wired vibration alarm clock, you can carry the portable alarm clocck to anywhere you want, put it on nightstand, bed and mattress, under the pillow or your quilt. A long rope is provided and you can tie the travel alarm clock to your bed or desk so it won't get lost.
- 5 Shaking Levels and 2 Wake up Mode: the vibration strength of this vibrating bed alarm clock is 20%-40%-60%-80%-100% 5 levels optional. Beside that, you can also choose to wake up to the vibrating alarm only or both the beeping alarm and the vibrating alarm, definitely a great bedroom alarm clock for light sleepers, deep sleepers, adults, the deaf without hearing aids, hearing impaired, HOH, for teen boys, kids, yong adults, college students and anyone. Let's put an end to sleep through the alarm or miss vital schedule!
- Rechargeable Battery Operated Alarm Clock: unlike other battery powered alarm clock that always needs to change battery, our battery alarm clock is rechargebale and user friendly. The powered indicator will show you the remaining power and a low battery icon will remind you to recharge the clock timely, no need to worry about battery power outage and no stress about missing the alarm, which is reliable for your daily use, travel, mobility and business trip. Power adapter for charging the clock is provided.
- Auto Set Alarm Clocks for Bedrooms with Auto DST: this digital alarm clock will set itself once power up and you only need to select your local time zone, no other setting needed which is very easy to use. With auto dst on, the LCD clock will automatically adjust to daylight saving time. Clock display is 12H (standard time) and 24H (military time) selectable. To view the time at night, press any button, the backlight will illuminate for 15s.
- 2 Minutes Alarm and 9 Minutes Snooze: the loud alarm clock will vibrate for 2 minutes when going off and it is also easy to access the dedicate snooze button to get extra 9 minutes sleep. To turn off the alarm for the day, just press the independent shake-off button and the alarm will go off again the next day, which is very user friendly.
- A Decent and Useful Gift for Everyone: if yourself, your family, friends or your loved is a deep sleepers or can't rely on beeping alarm to wake up, our vibrating alarm clock is your solutions! The vibrating alarm clock can be a perfect gift for birthday, Father's Day, Mother's Day, Thanksgiving Day, Christmas, Back to School.
- ⏰【Wake by 𝗦𝘁𝗿𝗼𝗻𝗴 𝗕𝗲𝗱 𝗦𝗵𝗮𝗸𝗲𝗿 & 𝗟𝗼𝘂𝗱 𝗕𝘂𝘇𝘇𝗲𝗿】- Differ from regular alarm sound clock, our 𝗹𝗼𝘂𝗱 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 comes with 3 innovative alarm methods: loud buzzer, super bed shaker or both sound and shaker, actually make it easier to wake you up from deep sleep. Simply press the “BUZZ/VIB” button to choose your favorite wake-up modes for maximum impact. The bed shaker alarm clock is also a perfect option for heavy sleepers, hearing impaired, deaf or hearing loss.
- 🔊【Strong Wired Vibration Shaker & Adjustable Volume】- The 𝘃𝗶𝗯𝗿𝗮𝘁𝗶𝗻𝗴 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 features with 71” wired bed shaker which is long enough to be placed under the mattress. It can produce a strong vibration to shake you awake without disturbing others. The alarm sound volume is 4-level adjustable to meet your different needs. Combing the highest volume level and powerful bed shaker, you can be reliably waken up on time even for heavy sleeper.
- 😴【Dual Alarm Clock & Big Snooze Function】-The 𝗱𝘂𝗮𝗹 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 allows you to set two separated alarms easily especially handy for couples or roommates who keep different schedules. When the alarm goes off, lightly touch the big snooze button to turn off temporarily and get extra 9 minutes sleep before alerting you again. You can also press the “ALARM PAUSE” or “ALARM OFF” to turn off the alarm for 24hours or permanently respectively.
- 🔅【7.5’’ Large Display & 5 levels Brightness Dimmer】-With 7.5’’ big LED display, the numbers on the 𝗯𝗲𝗱 𝘀𝗵𝗮𝗸𝗲𝗿 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 are ultra-clear to see from a long distance or across the bedroom even without glasses. 5 level adjustable screen brightness help you avoid high-intensity light while you are asleep or easily view the time in the daytime.
- 🔋【Electric Powered with Battery Backup】- All functions of the 𝗯𝗲𝗱𝗿𝗼𝗼𝗺 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 work under AC power (input power 100-240V), 2pcs AAA backup batteries (NOT Included) are only used to memorize time and alarm settings when encountering power outage. During the backup battery, the screen will go blank but the alarm will still be triggered.
- 📱【USB Charger Port Design & 12/24H Format】- The 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 𝘄𝗶𝘁𝗵 𝗨𝗦𝗕 𝗰𝗵𝗮𝗿𝗴𝗲𝗿 port (5V/1A) provides the convenience for charging your phone or other device safely while you sleep. The 12/24H format and DST function are also available by pressing the corresponding buttons.
- 🎁【Easy to Operate & Wide Application】- With the intuitive setting buttons, the 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 𝗳𝗼𝗿 𝗵𝗲𝗮𝘃𝘆 𝘀𝗹𝗲𝗲𝗽𝗲𝗿 is easy to use even for kids or elders. Updated features such as vibration, dual alarm, dimmer, USB charging port and modern design, the digital alarm clock can be as a perfect choice for your family, friends, kids.
- 𝗘𝘅𝘁𝗿𝗮 𝗟𝗼𝘂𝗱 𝗔𝗹𝗮𝗿𝗺 𝗖𝗹𝗼𝗰𝗸: Sonic Alert store brings the loudest alarm clock for kids of all ages. Our 113db extra loud sonic bomb alarm clock allows you to adjust the volume and snooze time of the alarm. In addition to these adjustments, the alarm clock features red flashing alert lights specifically designed for heavy sleepers. It doesn’t matter how much of a heavy sleeper you are; you’re never going to be late for your college lectures using the Sonic Bomb Alarm Clock.
- 𝗔𝗱𝗷𝘂𝘀𝘁𝗮𝗯𝗹𝗲 𝗔𝗹𝗮𝗿𝗺 𝗗𝘂𝗿𝗮𝘁𝗶𝗼𝗻 & 𝗦𝗻𝗼𝗼𝘇𝗲 𝗧𝗶𝗺𝗲: You can adjust the duration of the alarm for 1-59 minutes and snooze time between 1-30 minutes.
- 𝗩𝗶𝗯𝗿𝗮𝘁𝗶𝗻𝗴 𝗨𝗻𝗶𝘁: Waking up early in the morning can be difficult. That’s why the Sonic Bomb alarm clock comes with a super shaker to jolt you out of your sleep within seconds. The super shaker is a bed vibrating unit that vibrates when this alarm clock goes off to ensure that you always wake up on time. It also has three different modes: vibration, buzz, or vibrate/buzz combo. Allowing you to choose the mode that best meets your needs.
- 𝗣𝗲𝗿𝗳𝗲𝗰𝘁 𝗳𝗼𝗿 𝗦𝘁𝘂𝗱𝗲𝗻𝘁𝘀: Do your kids struggle to wake up in the morning? Let Sonic Bomb wake your kids up so that you don’t have to! Regardless of your child’s age, this alarm clock for teen boys & girls is super loud and makes the perfect gift for high-school students, fresh graduates, and those who are going away for college that don’t want to miss their classes.
- 𝗦𝗼𝗻𝗶𝗰 𝗔𝗹𝗲𝗿𝘁: Sonic Alert is an award winning globally recognized leader in the international electronics field, that helps the deaf, hard to wake, and elderly communities across the world with their notification needs. As a trusted brand for over 40 years, we strive to provide cutting-edge products that support our mission to alert & notify users through electronic communications.
- 113db extra-loud alarm with adjustable tone & volume control
- Packaged with our newest most powerful 12 volt bed shaker
- 5-level dimmer & test function to ensure your clock is setup properly
- Dual Alarm and equipped with 12/24 hour time capability
- Built-in red flashing alert lights, and battery backup
- SMALL BUT MIGHTY - If it takes an earthquake or siren to wake you up, this classically designed clock is exactly what you are looking for. The 3-level adjustable shaker is perfect for heavy sleeper or those with hearing loss. You also have the option to combine the vibration with the built-in alarm sound (buzzer, bird or music).
- EASY TO SETUP - Turning the two “ears” to set the time and alarm is extremely intuitive and straightforward. With all buttons clearly labeled and almost no two functions sharing the same button, it is a breeze to use right out of the box and change settings.
- CUSTOMIZABLE ALARM - The brightness of the classic is dial-controlled and adjustable from 0 to 100%. Dual alarms satisfy the need of anyone who shares the bed with a partner on a different morning schedule. Snooze allows extra 9 minutes of slumber.
- USB PORTS AND BATTERY BACKUP - 1 USB port located at the back will charge your mobile device while you sleep. AC-powered, but you have the option to back it up with 2 AAA batteries (NOT included) in case of power outage. Not only time and settings are restored, but alarms are also supported (vibration and USB will not work).
- If you have any questions or comments, please don’t hesitate to contact us - we are always here to help.
- ✨【Powerful 𝗕𝗲𝗱 𝗦𝗵𝗮𝗸𝗲𝗿 or 𝗟𝗼𝘂𝗱 𝗔𝗹𝗮𝗿𝗺 Sound】The extended 1.8m wired bed shaker is long enough to be put under pillow or mattress. It is specially designed for heavy sleepers, hard of hearing or deaf people who have trouble waking up in the morning with a traditional sound alarm clock, to only shake them up without waking spouse, roommate or kids. Buzzer sound is an essential option to meet all your preference.
- ✨【180° Adjustable Projector Angle & Focus Dial & Flipable Projection】The sleek 180-degree 𝗰𝗲𝗶𝗹𝗶𝗻𝗴 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝗼𝗿 with focus control ring provides a clear view of the time and adjustable angle with reverse button to meet any occasions. The optimum projection distance is 4.9-9.8ft, Project ultra-clear time onto your walls or ceiling.
- ✨【7" LED Display with Dimmer】The screen of the 𝗰𝗲𝗶𝗹𝗶𝗻𝗴 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝗶𝗼𝗻 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 is large and you can read it from the other side of the room even for short-sighted and elders. This alarm clock is designed perfectly with 3 dimming levels,the dimmest won't disturb your sleep in any way. Just press “DIMMER” button to eliminate extra light in the room.
- ✨【𝗨𝗦𝗕 𝗖𝗵𝗮𝗿𝗴𝗲𝗿&Snooze】USB charging port is compatible with all Android & IOS smart-phones, tablets, Kindle or any other digital devices. The snooze button is the best design for those struggling every morning to get out of bed.
- ✨【Battery Backup Setting】The 𝘃𝗶𝗯𝗿𝗮𝘁𝗶𝗻𝗴 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝗶𝗼𝗻 𝗮𝗹𝗮𝗿𝗺 𝗰𝗹𝗼𝗰𝗸 is outlet powered for supporting functions such as USB charging, vibrator, projection, alarm and time display. Two AAA 1.5V batteries(not included) are required to ensure memorization of time settings so that you don't need to reset time after encountering power outage.
- ✨【DST &12/24H】Hole press “DST” button on top of the 𝗰𝗲𝗶𝗹𝗶𝗻𝗴 𝗰𝗹𝗼𝗰𝗸 to activate Daylight Saving Time function and add a hour on digits display. And long press "12/24 H" button to change time format.
- 𝐔𝐥𝐭𝐫𝐚 𝐋𝐨𝐮𝐝 𝐌𝐨𝐫𝐧𝐢𝐧𝐠 𝐀𝐥𝐞𝐫𝐭: Super loud 104 db alarm clock jolts kids awake instantly, ensuring they’re never late for school. Moreover, it offers a customizable wake-up experience for heavy sleepers, adults, and teens, to shake off sleepyheads and embrace vibrant mornings. (Features 5 ringtones, 3 wake-up modes, and 30 volume levels.)
- 𝐁𝐞𝐝 𝐒𝐡𝐚𝐤𝐞 𝐀𝐰𝐚𝐤𝐞 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: Unlike traditional alarms that rely solely on sound, it's offers multiple wake-up modes to versatile for every wake-up scenario. Place it face down under the pillow, you can enjoy the strongest vibrations without disturbing your partner or being disturbed by the display lights during the night, all while avoiding morning arguments.
- 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐓𝐫𝐚𝐯𝐞𝐥 𝐏𝐚𝐫𝐭𝐧𝐞𝐫: Compact yet powerful. Featuring a rechargeable battery with up to 29 hours of runtime, this portable alarm clock is ready to accompany you through your day and travels with ease.
- 𝐒𝐥𝐞𝐞𝐩-𝐅𝐫𝐢𝐞𝐧𝐝𝐥𝐲 𝐅𝐚𝐛𝐫𝐢𝐜 𝐂𝐥𝐨𝐜𝐤: 0-100% adjustable dimmable LED digital clock can be customized to your exact preferences, ensuring it’s bright enough to see yet soft enough to let you sleep undisturbed.
- 𝐄𝐚𝐬𝐲 𝐭𝐨 𝐔𝐬𝐞 𝐆𝐢𝐟𝐭: All buttons on this bedroom alarm clock are clearly labeled, ideal for all ages. It’s the perfect solution for heavy sleepers in your family or friends who struggle to wake up with regular beeping alarms.
- 【3 Wake-up Modes and Vibration Level】Our loud alarm clock for heavy sleepers has 3 innovative alarm modes: beeps, bed shaker, or beeps+shaker, and 3 shaking level, which is specifically designed for deep sleepers kids, teens, adults, hearing impaired and the deaf people.
- 【Personalized Alarm and Date Settings】The bed shaker alarm clock can be set 2 seperate alarms and weekday/weekend/everyday modes, especially suitable for roomates who has different scheduals, it also avoid the hassle of repeatedly alarm setting.
- 【Customized Nightlight & 7.5''Large Display Brightness】The alarm clocks for bedrooms adds a 3-level brightness nightlight for your families safely fall asleep and wake alone, 5-level digit dimmer can meet their different brightness needs during the day and night.
- 【Adjustable Volume and Big Snooze】115dB super loud alarm clock has 5-level adjustable volume, and a big snooze button, easily turn off the alarm temporarily and enjoy extra 9-minutes sleep, up 9 times, giving your body some time to adjust to waking up.
- 【DST & 12/24H Format & Week Display】Simply hold press 1 button can turn DST function on and off, short press it switch 12H and 24H time format, meet the multifaceted needs of the user. And week display allows us no longer confused about dates, easy to use.
- 【Battery Backup & USB Port】The bedside digital clock is powered by AC (Not Battery), batteries only memorize the time setting and the alarm will ring in case of power outage, but don't support time display. A USB port is convenient to charge your phone or devices.
- Discreet reminders on the go - Complete peace of mind with up to 10 silent vibrating alarms per day.
- Great for all types of reminder – Pills and medication, water, potty training, wake up alarms etc.
- Rechargeable - Comes complete with USB charging cable for the watch's built-in lithium-ion battery.
- Super easy to use – Simple, two button design for easy adjustments to meet your changing schedule. A set up video is available at amazon.com/tabtime
- Modern, fashionable design – Sleek silicon strap and classic buckle fastening (Large: 6.3" to 8.3" circumference).
- Important: This watch offers up to 10 alarms only and does not include a countdown timer.
- 【EXTRA LOUD ALARM CLOCK】 Always sleep through alarms? Hard to hear alarm when go off in the morning? Our super loud alarm clock for heavy sleepers/hard sleepers/hearing loss/deaf people is a life saver for you. Just put the vibrating clock under pillow and it will shake you up on time. Choose from 3 different ways to wake up with our bed shaker alarm clock: Vibration+Alarm, Vibration Only or Alarm Only. 3 adjustable vibration intensities(High/Medium/Low) and 5 adjustable alarm volumes.
- 【SMALL TRAVEL ALARM CLOCK】 Measured 3.35*3.35*1in, weight 0.3lb/135g, this tiny small alarm clock is compact and portable enough that you don't really feel it under pillow until it goes off, the round shape makes sure it does not have any sharp edges that could poke you awake if you roll over on top of it while sleeping. Small, portable, and does not take up too much space in your suitcase when travel.
- 【USB-C RECHARGEABLE CORDLESS CLOCK】Unlike most of plug in alarm clock with wired bed shaker, our loud alarm clock designed to be wirelessless with powerful 3000mAh rechargeable battery, which can LAST FOR 160 DAYS on single charge on lowest vibration and alarm setting. There is also a battery indicator shows on the screen allowing you to know when to charge the clock when it's in low battery. Comes with a convenient USB-C cable for recharging.
- 【Easy to Set】The buttons of this simple alarm clock are well-located and can be programmed logically, even the kids and seniors will find it easy to set. The Snooze button is located in the middle and larger than other buttons, which will be easy to hit when half awake. There is also a child lock sliding block on the back to prevent random buttons being pressed while sleeping.
- 【Dual Alarms with Weekday/ Weekend Mode】Equipped with dual alarms, ensures that you can wake up on time with the backup second alarm. The separate weekend/weekday/all-7-day modes allow you to customize your personal wake up settings.
- 【12/24H Time Format&DST】The vibrating clock under pillow is also featured with 12H/24H time format&Daylight Saving Time. The package includes:1x Bed Shaker Alarm Clock, 1xWrist Strap, 1x USB-C Cable, 1x User Manual. If there is any question with our product, please feel free to contact us.
- 3 Wake-Up Modes: Choose from our 95dB Extra Loud Buzzer, Super Vibrator, or combine both for a powerful wake-up experience. Perfect for heavy sleepers, those with hearing impairments, and the deaf community
- Strong Wired Vibration Shaker & Adjustable Volume: The clock comes with a 78" long wired bed shaker that can be placed under the mattress to wake you up without disturbing others. With a maximum volume of 105dB and 4 adjustable levels, it is suitable for waking up kids, teens, and students effectively
- Dynamic RGB Display And Nightlight: Enjoy 8 different colorful screens and a 7-color rainbow atmosphere light with this cute clock, perfect for boys and girls, adding a cool and fun touch to any desktop decoration
- Regular Features: This electric alarm clock features dual alarms, a 10-minute snooze function, and a USB phone charging port. It also offers a 12/24-hour time format and weekday/weekend mode
- Outlet Powered & Battery Backup: The compact clock can be powered using the included USB power adapter, providing the convenience of a plug-in design. It also includes a battery backup feature, so you won't need to reset the time and alarm after a power outage
- Easy to Operate: The alarm clock is designed for easy use with intuitive setting buttons, making it suitable for people of all ages, including kids and elders. It features updated functions such as vibration, dual alarm, dimmer, USB charging port, and a modern design, making it a perfect choice for your family, friends, and kids
How to choose a good vibrating alarm clocks
Does the idea of finding a fantastic vibrating alarm clocks make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in vibrating alarm clocks. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top vibrating alarm clocks products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top vibrating alarm clocks on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top vibrating alarm clocks brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top vibrating alarm clocks based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the vibrating alarm clocks were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good vibrating alarm clocks, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your vibrating alarm clocks.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting vibrating alarm clocks for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our vibrating alarm clocks. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what vibrating alarm clocks should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on vibrating alarm clocks.
