Reflection
Sharing a bedroom or a small apartment can quietly erode the sanctuary you need to rest. For introverts, sleep is more than a nightly habit; it is a private pause that restores attention and calm. Naming that need calmly gives you permission to protect it.
Practical boundaries are small and reversible: an agreed lights-off window, a compact sleep kit (earplugs, eye mask, soft lamp), designated quiet hours, and a visible cue such as a closed door or gentle sign. Physical tweaks and predictable rituals reduce friction without lengthy negotiations and keep evenings predictable.
Introduce change as an experiment: suggest one simple adjustment, set a short trial, and invite brief feedback. Use concise language ('I sleep better when...'), offer a clear compromise, and treat the arrangement like a mutual project. Over time, consistent gentle limits shape a shared space that honors both rest and companionship.