s it worth bringing a mosquito net / sleeping bag ?
If you plan on going trekking in the north during the cool season, a sleeping bag is definitely necessary (they can be bought / rented in Chiang Mai). Elsewhere, the weather is much warmer and so you don’t need one. A mosquito net may be worthwhile if you plan to stay in a lot of budget accommodation in off-the-beaten-track areas, but many places will provide their own. On balance, it’s probably not needed especially as they are available cheaply in Thailand as are mosquito coils. You should bring some DEET mosquito repellent though, which is much better bought abroad than in Thailand.
