We've extensively researched top-rated mattresses and tracked price histories to find the best Prime Day mattress deals you can score during Amazon Prime Day 2025.

Online spending is expected to surge to $23.8 billion across U.S. retailers during a 96-hour Amazon Prime Day event this week, according to an Adobe Analytics forecast released on Monday, as shoppers seek strong discounts on back-to-school gear ranging from apparel to electronics.

I’ve been keeping an eye on all the early Prime Day deals before the sale officially begins tomorrow, and my No. 1 pick is Amazon’s own smart plug, which has been a best seller with Strategist readers every Prime (and October Prime) Day since 2023.