How to Get Beach Waves Without Heat Overnight

Braid damp hair or twist it into buns before bed, then sleep your way to effortless waves.

1. Start with the right dampness. Hair should be about 70% dry—not soaking, not bone dry. Too wet and you'll wake up with soggy hair that takes forever to dry. Too dry and the waves won't set.
2. Apply your hold product. Work sea salt spray or mousse through your lengths, avoiding the roots. This gives the waves something to grip onto while you sleep.
3. Choose your overnight method. Braid loosely from mid-length down for subtle waves, or twist sections into mini buns secured with soft hair ties for tighter spirals. Six to eight sections work for most hair lengths.
4. Sleep and release. Use a silk pillowcase to prevent frizz and breakage. In the morning, gently finger through the waves—no brushing unless you want to lose the texture entirely.