Tested recipe · Ambient / wellness
Sleep Bed (Long-form Seed)
A 30-second ambient seed texture that survives 20x time-stretching for sleep and meditation beds.
- Model
- Suno v5.5
- Date tested
- 2026-06-30
- Tested by
- Cato Lindqvist
- Usable rate
- 10 of 12 (83%)

The batch, run by run
Filled squares are usable takes. Reliability 5/5.
The exact prompt
[Ambient, 60 BPM, C major] Warm slowly-breathing pad, no rhythm, no melody, single sustained chord that barely moves, soft tape hiss, extremely gentle, designed to loop seamlessly
Exclusions (load-bearing)
drums, arpeggio, melody line, chord changes, bright bells, nature samples
The evidence
Real Suno generations, matched to this recipe's genre and tempo. Each one links to its source.
keeper
Sleep bed, take 3
60 BPM · C maj · 3:39Take 3 of 12 · Cleanest loop point of the batch.
keeper
Hibernal
58 BPM · D dor · 6:09Released result · Two stretched seeds layered, delivered as a 40-minute commission.
Known failure modes
- A faint hat pattern appears when 'gentle' is omitted
- Chord resolves upward at the loop point, breaking the stretch
The repair prompt
Same texture but remove any rhythmic element completely and hold the exact same chord from first second to last