The Bestselling Amazon Items Every 20-Something Should Own

The Wake-Up Light Sunrise Alarm Clock ($43, originally $46) is designed with heavy sleepers in mind. The alarm has a "sunrise stimulation light" that adjusts from 10 to 100 percent brightness 30 minutes before your alarm's set time. The alarm comes with a radio, a snooze function, and seven color-changing light settings.

The Carhartt Knit Cuffed Beanie ($22) comes in over 25 different colors with a rib-knit construction that's super comfortable. Its versatile design works well with anything, and it's durable enough to last for seasons to come.

The Easeland Queen Size Mattress Pad ($50) is made of a 100 percent cotton top with a down alternative fill that's super comfortable. Its elastic fabric will keep it in place no matter how much you move around (aka your bed won't look messy).

The Linenspa Hybrid Medium-Firm Mattress ($200, originally $255) contains a mix of springs and memory foam to create the perfect medium-firm mattress with ample support. Available in sizes eight to 12 inches with the added option of a platform bed frame, it's hard to go wrong with this bed-in-a-box-style mattress.

This Rocketbook Everlast Reusable Smart Notebook ($25, originally $30) contains only 36 pages, but they can be wiped clean with a damp cloth and can also be exported to Slack, email, Google Drive — you name it. There's no more wasting paper with this handy notebook!

If you're a fan of the iRobot Vacuum, then you'll want to give this iRobot Braava Jet 240 Robot Mop ($180, originally $199) a try. It'll clean your floors when you're not around, so you have nothing to worry about later.

This Pro Makeup Brush Cleaner & Dryer Kit ($40, originally $80) is so fast and easy to use — customers are loving it. It comes with a two-year money-back guarantee in the rare case you don't like it.

Espresso on the go? You'll want to get the Wacaco Minipresso NS, Portable Espresso Machine ($55, originally $60) for yourself; it's so genius! It is hand-operated and doesn't rely on electricity.

Air fryers are all the rage right now, and this Ninja Air Fryer ($100, originally $130) is a bestseller on Amazon. It has four programmable cooking functions, and its basket can easily be washed in the dishwasher.

Mornings will be easier than ever with this Keurig K-Mini Single Serve Coffee Maker ($80). The machine is less than five inches wide and perfect for small kitchens. It's available in six colors, so you don't want to skip out on this coffee maker.

Create endless craft cocktails in the comfort of your home with the Bartesian Premium Cocktail and Margarita Machine ($370). The best part: no measuring or mess; the machine does everything for you. It's the Keurig of alcohol!

You can have your own personal assistant with the Amazon Echo Show 10 ($250). You'll be able to enjoy entertainment, keep in touch with friends and family, control your household, stay on top of your schedule and errands, and so much more with this one device.

This Roku Express ($24, originally $30) is the most affordable option of its kind on the market. It's an easy setup that houses all your streaming services in one portable device.

The iRobot Roomba 981 Robot Vacuum-Wi-Fi Connected Mapping ($220) is the home helper you never knew you needed. It will clean pet hair, carpets, and hard floors. It works with Alexa so you can schedule it to clean whenever you want.

If you have damaged or color-treated hair, the Olaplex Hair Perfector No. 3 Repairing Treatment ($28) has got you covered. A little bit will nourish your hair from root to tip.

Make your hair shine like a disco ball with the Color Wow Dream Coat Supernatural Spray ($28). It's a humidity-proof, antifrizz treatment that lasts through up to three shampoos for hair that's smooth and soft to the touch.