Let us please spray these areas more thoroughly. These are the most likely places to have bed bugs, ranked in order.

1. Below the queen bed — where I used to keep an old laptop. In Mar or Apr some Simlim shop opened it and saw insects though I wasn’t there to witness.
2. Behind Queen bed —  where we never checked
3. Queen mattress — where we caught 2 bed bugs
4. the lower compartment of the wardrobe in the master bedroom — where I used to keep the old laptop
5. curtain in the master bedroom

Note this time round I have not seen a bedbug anywhere outside the queen bed, even when I checked after midnight. In contrast, during the 2014 episode I did find many bed bugs after midnight on, never around, each of my beds+sofa. I read that “Since they prefer to nest within about 15 feet (5m) of their host, you’ll probably find them hiding in tight spaces near your bed.” https://www.epa.gov/bedbugs/how-find-bed-bugs hints that bed bugs mostly hide at the bed, and in other parts of home if heavily infested.

To be practical, I have to assume some parts of a house are UNLIKELY to have bedbugs (including eggs):

1. kitchen
2. fridge, washing machine
3. ceiling
4. bathroom
5. high up on wardrobe — I assume bed bugs don’t need to climb so high
6. bookshelf
7. books
8. toys — ours are mostly plastic
9. piano
10. display cabinet in living room
11. storeroom — ours is far from beds and there are no old laptops, bedding etc