YU Sleep ReviewsIndependent Research & Buyer GuidesThe ladder, in numbers
| Tier | Total | Per bottle | Per night | Shipping (vendor-reported) | Covers |
|---|---|---|---|---|---|
| 2 bottles | $138 | $69 | ~$2.30 | + fee | ~60 days |
| 3 bottles | $177 | $59 | ~$1.97 | Free | ~90 days |
| 6 bottles | $294 | $49 | ~$1.63 | Free | ~180 days |
Thirty servings per bottle makes the per-night column honest arithmetic, not marketing.
The guarantee-window trap
The refund window is 60 days on every tier. Two bottles is the window — you finish them almost exactly as the clock runs out, leaving no spare weeks for a slow-adapter's verdict. Six bottles is a six-month commitment evaluated inside two months: fine after a proven trial, wasteful before one. Three bottles is the only tier that covers the window plus a buffer, which is why it keeps winning our first-buyer analysis despite not being the cheapest per bottle.
Decision rules by buyer type
First-time buyer, cautious budget: 3 bottles. Free shipping, window-plus-buffer coverage, and $117 less exposure than the 6-tier if the answer is no. The 2-tier's apparent savings evaporate against its shipping fee and zero buffer.
First-time buyer, already compared and convinced: still 3 bottles. Conviction isn't data; the first trial produces the data.
Repeat buyer with a finished successful trial: 6 bottles. $49 per bottle is the best unit price, and six months matches the vendor's own adaptation timeline.
Subscription-inclined buyer: compare against autoship — first two at $59 then $49/month, per the offer terms. Ongoing users eventually beat every one-time tier; the cost is remembering you're enrolled. Explainer here.
Gift buyer: 2 bottles. You're buying someone else's trial; don't finance their maybe.
The shipping interplay
With US fees stated at $9.95–$14.95 for small orders and free on the 3/6 tiers, the 2-tier's real cost is $138 plus a fee you'll only see at checkout — narrowing its gap to the 3-tier to roughly the price of one added bottle. When two tiers are that close, buy the one with more buffer.
What not to let decide for you
The struck-through $99 anchor is designed to make all three tiers feel like wins simultaneously — mathematically, at most one is the right win for your situation. Let the per-night column, the buffer logic, and your trial plan choose; let the anchor do nothing.
First trial: 3 bottles. Proven user: 6 or autoship. Gifting: 2. Everything else is decoration.