Best Amazon deals Wednesday — save on Tuft & Needle, Ninja, and more

Tuft & Needle Nod Mattress: was $349 now $314 @ Amazon
For Sleep Awareness Week, Amazon has taken 10% off the Tuft & Needle Nod mattress. This is the manufacturer's most affordable mattress, so it's great to see it on sale. The Nod mattress features their proprietary adaptive foam for the most comfortable night's sleep possible. After discount, the twin costs $314 (was $349), whereas the queen costs $449 (was $499). The Nod is also an Amazon exclusive mattress. 

Ninja 4qt Air Fryer: was $119 now $99 @ Amazon
This Ninja air fryer lets you fry and dehydrate foods to create quick snacks. The 4qt air fryer may not have a huge capacity, but it's extremely powerful. It's currently on sale for $30 off at Amazon.

Amazon Echo Auto: was $49 now $19 @ Amazon
Echo Auto makes it easy to add Alexa to your car. It uses 8 mics and far-field technology to hear your voice over music and road noise. Amazon currently has it on sale for $30 below its regular price.

Roku Premiere: was $39 now $29 @ Best Buy
The cheapest way to stream in 4K with a Roku device right now is the Roku Premier. Currently, you can save $10 on this tiny little streaming stick. It even offers HDR support!

Amazon Fire TV Cube: was $119 now $69 @  Amazon
Access today's most popular streaming content with Amazon's Fire TV Cube. From Netflix to Disney Plus to Sling TV, this Alexa smart device brings the convenience hands-free control of your favorite programs and movies to your living room. At $50 off, it's at its lowest price ever.