These 15 Prime Day deals are cheaper than they were on Black Friday — seriously!

Once you invest in first really good pair of noise-canceling headphones, you'll wonder how you ever lived without them. 

These Bose QuietComfort over-ear headphones are an absolutely amazing deal for under $200. In fact, they're $50 cheaper than they were on Black Friday, making them one of the few Prime Day deals that's actually worth your time.

They come with the crystal-clear sound quality and depth you've come to expect from Bose, as well as superior noise cancellation technology that elevates them above the competition. 

With a nearly 5-star rating from over 3,000 Amazon reviewers, it's not hard to understand why. "I’d give it ten stars if it were possible," wrote one commenter. "I just can’t say enough about the superior noise cancellation and sound quality in addition to the wearability."

Hyaluronic acid is one of those hero skincare ingredients that dermatologists we've spoken to over the years agree is of the utmost importance for maintaining glowing, youthful skin as you age.

It's a hydrating and plumping ingredient that draws in moisture and prevents moisture loss — hence why you've likely seen it in everything from face washes to moisturizers and serums.

This pure hyaluronic acid with B5 from dermatologist-beloved skincare brand La Roche-Posay is an excellent addition to anyone's routine, but especially those concerned with maintaining plump, hydrated mature skin. Use morning or night after cleansing and toning and before moisturizing to seal in moisture.

It's also about 13% cheaper than it was on Black Friday, making this an excellent time to add this superior skincare product to your routine. 

Over 25,000 Amazon reviewers have already found out what it's all about. "I have been a loyal La Roche Posay user for years and recently reached for this product to manage my fine lines from dehydration," wrote on reviewer. "Within minutes, I noticed my skin visibly improved. This product provides instant hydration."

Sure, these weren't expensive sheets to begin with, but every dollar counts, right? And when you can get a new set of sheets for less than the price of your weekday lunch, that's worth calling out. Plus, they're nearly 40% cheaper than they were on Black Friday.

These microfiber sheets are made of durable microfiber materials that are designed to keep you cool and comfortable. They come in a huge suite of colors — from bright white to peachy coral, and everything in between — and are available in sizes from Twin and Twin XL to King. Each set comes with a fitted sheet, flat sheet and pillow cases.

These sheets are part of the elusive 400,000-reviews-and-up club on Amazon, where they have a 4.5-star rating. 

"For the money, I wasn’t sure what I would be receiving," said one Amazon reviewer. "They are incredibly inexpensive. When I received them, washed them, and put them on the bed and slept in them, I couldn’t believe the beautiful quality and feel of the material. In these warm evenings, they actually feel cooling to the touch. I have bought expensive sheets in the past, but nothing compares to these."

Prime Day 

Prime Day is a pseudo-holiday not about needs, but wants. And while nobody needs a SodaStream, most of us kind of want one. If you're ready to act on that impulse, this deal on a SodaStream is the best price we've seen, even better than its Black Friday price. 

Instantly make sparkling water with the included CO2 canister, bottle and Bubly drops for your favorite flavor. The bottle is dishwasher safe and the design is cordless so you can use it wherever it makes the most sense in your kitchen layout.

It's a great choice for those who either love soda (but not the price) or like having sparkling water on hand, but hate the waste.

"If you're like me and love the taste of carbonated water, this is the perfect product for you," wrote on reviewer. "I don't, like most, like to add more waste to the trash. Let alone carting the heavy packages of plastic bottles....The unit is easy to use, takes up little space, and allows me to carbonate to my tastes. Lastly, after storing its 1 liter bottle in the refrigerator over night, the water retained it flavor and full carbonation."