The 15 best sales to shop this weekend: Backpacks, mattresses, bedding and more

If your less-than-glowing teeth could use some restoration, these bestselling strips reportedly whiten teeth up to 20 shades in just 22 days — that's almost one shade per day! According to the brand, you're guaranteed to have a noticeably whiter smile, and with this kit, you'll get some bonus express treatments for same-day results. 

Out of the over 66,000 5-star reviews, many have said they are pleased with the results. "After trying these strips, my teeth were visibly whiter and now I feel more confident overall," wrote one reviewer. 

For this price, this is just about as low as they ever go on sale, which is why we're dubbing them one of the few deals that's really worth its salt this Labor Day.

This minimalist backpack is beloved by teens and adults alike thanks to its stylish, non-bulky design that's waterproof. Perfect for fitting a small laptop and a few books to class, or for toting around the farmer's market on the weekends. Choose from several colors, though we're keen on this simple black design that's on sale now. 

"I work outdoors in Seattle so it rains a lot," said one reviewer. "This bag is wonderful and holds all my necessities without the fear of everything in the bag getting drenched. It’s such a cute bag too."

This heavyweight, sweater-knit fleece jacket acts as an insulating layer in cool-to-cold conditions. "I would buy this jacket again," wrote one reviewer. "Soft. Great for fall and spring weather." Choose from three colors in sizes XS to 3X.

We reviewed the Nespresso Vertuo earlier this year and found it to be one of the best affordable espresso machines out there — and now it's on sale! For those who want to be able to make quick, easy and — most importantly — superior-tasting espresso drinks at home, the Nespresso Vertuo is worth serious consideration. Not only does it have the ability to make a mug of coffee, but it can brew up espressos and double espressos in seconds. In fact, you can buy pods in six brewing sizes in all types of flavors, recipes and intensities so chances are you'll find something to suit your tastes.

Don't let this vac's light weight fool you — it's a cleaning powerhouse, whooshing up embedded dirt, dust and debris from every surface in your home with what we imagine would be a smile on its face. Its Helix dirt separation system helps keep filters fresh and new for longer, and five height settings allow cleaning on almost any surface.

If you spend a lot of time driving, it's inevitable that you'll end up with a spill or two eventually. Make sure your car looks good as new afterward with the Bissell Little Green portable carpet cleaner, which removes spots and stains by lifting away messes from carpets, upholstery, car interiors and more. It has a strong spray and suction design that helps you target stuck-in stains and work them out.

More than 10,000 reviews on Walmart are obsessed with this stain-fighting tool. "After months of my kids trashing my car and spilling smoothies, milk, lemonade, etc., the backseats in my car looked awful," said one parent. "I used this carpet cleaner for my seats and, wow, the difference speaks for itself."

Take advantage of this deal on a zero gravity chair we've been keeping tabs on all summer. It's now $10 cheaper than it's been all summer, too!

Zero gravity chairs are good for those who suffer from back pain because they recline you in a way so that there's no gravity pressure on your lower back. This one is made of stylish rattan and steel that can support up to 330 pounds. 

Free the last of summer's wild blackberries with this compact freezer chest can be use in kitchens, garages or anywhere else you have the space and need for one. It comes with a removable basket so you can store and organize your frozen goods, and an easy-access defrost drain for when you need it. "It is the perfect size," wrote one reviewer. "There's plenty of space inside and it is easy to maneuver if needed."

Extend the life of your professional blowout with the use of a silk pillowcase. Silk pillowcases have been a favorite among those with curly hair for a long time, but they've been mainstreamed recently as a must-have for beauty lovers and skin care obsessives. 

Out of more than 47,000 reviewers, many say they "highly recommend" this pillowcase, and that it's good quality. Choose from over 30 prints and colors.

The right mattress can mean the difference between an okay night's sleep or a great one. If you fancy yourself the Goldilocks of sleepers — needing something that's neither too soft nor too firm — the Original Mattress from Tuft & Needle is a good place to start. 

What makes this mattress unique is that it's designed with a one-of-a-kind cooling gel as well as heat-conducting graphite material that makes for an incredibly comfortable and breathable night's sleep. It's an especially good design for those who consider themselves hot sleepers. 

More than 25,000 shoppers swear by it with one reviewer saying it helped her chronic pain: "When I was traveling, I stayed in an Airbnb that had this mattress and I slept better than I had in years. As soon as I got home, we ordered one. I have much less disturbance to my sleep because I don't have to shift my position constantly to stay comfortable!"

This isn't your grandmother's Tupperware, but it might look like it. If the sight of this Tupperware takes you back to home cooked meals in your childhood kitchen, then it might be time to bring back the memories with your very own set.

This 36-piece set comes with tight lids and are designed to be stackable. They're also dishwasher safe.

One of our favorite interactive toys for bored dogs is on sale on Amazon for just $11 right now. Toss the three plush squirrels into the plush tree trunk and throw it to your pup and they'll stay stimulated for hours as their hunting instincts kick in while they try to unearth the squirrels.

It's also a great toy for dogs you have teeth and gum issues. The soft, plush material isn't damaging to their teeth. 

Of course, as with all dog toys, remember to supervise your dog when they're playing alone. 

Beckham Hotel Collection's down alternative bed pillows are Amazon's No. 1 best-selling bed pillows, with more than 240,000 reviews. What makes these Beckham Hotel Collection pillows unique is that they're made of a luxurious, ultra-soft, breathable down alternative fill that won't shift or deform overtime like many other types of pillows. The down alternative fill is a great option for those with allergies, too, who might have sensitivities to other pillow fills like feather, down and foam.

I've owned a pair of these Beats over-ear headphones for years now. I wore mine so much while renovating my house that I ended up buying a second pair: one for wearing while doing dirty tasks like sanding, painting and gardening and the other for everything else.

I love the noise cancelling feature on these hfeadphones, which drowns out surrounding noise and distractions — perfect for working from, during your commute or in a bustling office.

Get the red color on sale for 40% off right now.

If you're a hot sleeper who's prone to sweating in the night, one of the best and easiest changes you can make to cool down is switching to 100% cotton bedding. Because cotton is a natural, breathable material, it keeps your body temperature regulated and doesn't lock in body heat the way synthetic materials do.

These 400 thread count Egyptian cotton sheets are made entirely of cotton in a silky smooth sateen weave that's extremely cool to the touch. Choose from nine colors in sizes Twin to King. Each set comes with a fitted sheet, flat sheet and pillow cases.