Is it normal to laugh out loud in your sleep?
Mostly.Normal for most people
Yes, laughing out loud in your sleep can happen, often while you’re dreaming, and an occasional episode is usually harmless. You may not remember it in the morning.
Sleep can bring out all kinds of little noises—talking, mumbling, and sometimes laughter. It may happen during a dream, and it’s not unusual to have no memory of it afterward. It can sound odd to anyone sharing your room, but an occasional laugh usually isn’t a big deal.
If it’s happening often, seriously disrupting your sleep, or comes with forceful movements or injuries, it’s worth mentioning to a healthcare professional.