SLEEP TIGHT cover art

SLEEP TIGHT slot: RTP and max win

By Crystal. Released 18 Oct 2026, math version 1.
Medium volatilityNo. 1335 most played this monthNew

SLEEP TIGHT is a medium-volatility slot by Crystal on Stake Engine, released 18 Oct 2026. Its base game returns 96.10%, above the median Engine slot (96.02%) and higher than 53% of them. The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 6,250,017 spins. It has 4 bonus buys priced at 25× to 300× the bet; the best returns 96.10%, so each buy costs 0.98× the bet on average over the long run. It is the No. 1335 most played Engine slot over the last 30 days.

Base RTP
96.10%
catalogue figure 96.100%
Max win
25,000×
of the base bet
Max win, base spins
1 in 6,250,017
25,000× top payout per spin
Base spin pays nothing
76.3%
of spins
Players, last 30 days
1,567
$97K wagered (Engine Insights)

Every mode, side by side

Costs are multiples of the base bet. Odds come from the published outcome table for v1. "Returns the cost" counts rounds that pay back at least what the mode cost. Expected cost is cost × (1 − RTP): the average amount lost per round over the long run.

ModeTypeCostRTPMax winMax win oddsPays anythingReturns the costExpected cost per round
BaseBase spin1.00×96.10%25,000×1 in 6,250,0171 in 4.231 in 110.04× base Simulate
CandyBoosted spin3.00×96.10%25,000×1 in 2,083,3341 in 2.171 in 6.950.12× base Simulate
GrabspinsBonus buy25×96.10%781×1 in 12,9821 in 1.061 in 9.140.98× base Simulate
MidnightsnackBonus buy100×96.10%25,000×1 in 62,500–1 in 3.373.90× base Simulate
TrickortreatBonus buy200×96.10%25,000×1 in 62,500–1 in 3.117.80× base Simulate
SleepwalkBonus buy300×96.10%25,000×1 in 62,516–1 in 2.8311.70× base Simulate

Work out the cost of SLEEP TIGHT bonus buys at your bet size

Version history

Base-mode RTP per published math version. Older versions stay public in the fairness API, so changes can be checked.

VersionBase RTP
v196.100%Active

Frequently asked

What is the RTP of SLEEP TIGHT?

Base spins return 96.10% of the amount wagered over the long run, from the published outcome table for version 1. All 4 of its bonus buys return 96.10%.

What is the max win in SLEEP TIGHT and how likely is it?

The top payout is 25,000× the base bet. On a base spin it lands 1 in 6,250,017 spins. In the Grabspins buy (25×) 781× lands 1 in 12,982 buys.

Does SLEEP TIGHT have a bonus buy, and what does it cost?

Yes, 4 buy modes. Grabspins: 25× the base bet, 96.10% RTP, an expected cost of 0.98× the base bet per buy. Midnightsnack: 100× the base bet, 96.10% RTP, an expected cost of 3.90× the base bet per buy. Trickortreat: 200× the base bet, 96.10% RTP, an expected cost of 7.80× the base bet per buy. Sleepwalk: 300× the base bet, 96.10% RTP, an expected cost of 11.70× the base bet per buy.

Is SLEEP TIGHT high or low volatility?

Medium. Its base-mode standard deviation is 17.6× the bet, which puts it in the middle third of Engine games. What volatility means.

Can I check that a result was fair?

Yes. Engine games use provably fair seeds. Once your server seed is revealed you can replay any round against the published outcome table. See how to verify a result.

Slots with similar math to SLEEP TIGHT

Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.

More from Crystal

Get an email if SLEEP TIGHT changes its RTP or modes

One email a week: new Engine slots with RTP and max-win odds, RTP changes and the most played games. Free, no casino offers on this site. Unsubscribe any time.