Lull · Bed Frames & Foundations
Mattress Foundation
In stock Checked Oct 19, 2026, 7:03 AM ET
Tracking since Oct 18, 2026 Day 2 of price history. We need about 14 days before we call a price high or low.
Store buttons go straight to the brand's own product page. No affiliate tags yet. Prices are the listed price on the brand's site at our last check (Oct 19, 2026, 7:03 AM ET); coupons at checkout can make it lower. Disclosure
Price for Every Option
| Option | Price | Store's "was" price | Stock |
|---|---|---|---|
| Twin | $319 | ❌ | |
| Twin XL | $319 | ✅ | |
| Full | $349 | ✅ | |
| Queen | $379 | ❌ | |
| King | $419 | ✅ | |
| Cal King | $419 | ✅ |
How This Price Compares
At $319, the Mattress Foundation is the #16 cheapest of the 40 in-stock bed frames & foundations we track today. In-stock bed frames & foundations we track run from $59 to $1,999, with a median of $414. Compare all bed frames & foundations.
Price History
About This Product
Do I Need a Mattress Foundation? A good foundation isn't just about height — it's about protecting your mattress and your sleep. Sleeping on a mattress directly on the floor traps heat and moisture, voids most warranties, and can cause sagging over time. The Lull Foundation gives your mattress the firm, even support it needs to perform the way it was designed to. Foundation vs. Box Spring: What's the Difference? Traditional box springs contain coils and were designed for older innerspring mattre… (From Lull's product listing.)
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