Bangkok is a long flight from almost everywhere people move here from, and the city itself is not designed for quiet nights. Between jet lag, traffic, construction and the glow from the building across the soi, sleep often becomes the first casualty of expat life.

Resetting after a long-haul flight

Your internal clock shifts by roughly an hour per day on its own. You can speed that up mainly with light. Arriving from Europe, you are flying east and need to shift earlier: get bright outdoor light in the morning and keep evenings dim. Arriving from North America, the shift is so large that it often works better to treat it as a westward delay: seek light in the late afternoon and evening for the first few days, then gradually move it earlier.

Keep naps short, under 30 minutes, and before mid-afternoon. Eat meals at local times from the first day, since food timing is another cue your body uses. Caffeine helps in the morning but should stop around lunchtime while you are adjusting.

The noise problem

Low-frequency sound from traffic and air-conditioning compressors travels through walls easily. A few things genuinely help. Foam earplugs, inserted properly by rolling them thin and letting them expand deep in the ear canal, block more than most people expect. A steady background sound, from a fan or a white-noise app, masks sudden spikes like motorbikes or late-night deliveries. If you are choosing a condo, a unit facing the inside of the building or away from a main road makes a bigger difference than the floor number.

Light and temperature

Blackout curtains are worth installing even in a rental; many landlords will agree if you ask. Cover standby LEDs with tape. Most people sleep best in a room around 24 to 26 degrees with a fan for air movement, rather than an air conditioner running at 18 all night, which can leave you dry and congested. Set the timer so it eases off in the early morning.

A consistent anchor

The most effective single habit is a fixed wake-up time, seven days a week. Bedtime can drift a little; the wake time anchors everything else. Pair it with ten minutes of daylight soon after waking, even on a balcony, and your clock will stay steady through late dinners and weekend plans.

When to get help

If you are still struggling to sleep after a month, or you snore heavily and wake up unrefreshed, see a doctor. Several Bangkok hospitals run sleep clinics, and conditions like sleep apnoea are common, under-diagnosed and very treatable.