Can I wear these while sleeping on my side?

Yes. The flat fabric band puts no hard parts against your ear, which is the main reason people choose this style over earbuds. The speakers can still shift, so adjust them before you lie down.

Do they block out snoring or noise?

Not much. The band has no active noise cancellation and only light passive isolation. They mask sound by playing audio, not by blocking it.

How long does the battery last?

Battery life is modest for this type of headband, so expect to charge it every few nights of use. Charging overnight defeats the purpose, so top it up during the day.

Can I take calls with them?

Yes. The built-in microphone lets you answer calls, though callers hear you less clearly than on a phone held to your ear.

Are they good for running or the gym?

They work for light exercise and stay on the head, but sweat builds up in the fabric and the band needs washing. For intense workouts, sweat-resistant earbuds are a better fit.

How do they compare with earbuds for sleep?

They are more comfortable for side sleepers and stay in place better than earbuds. Earbuds sound better and isolate more, but they press into the ear when you lie on them.