
Found a single bed bug - what now?
After staying away at a friend's, the morning after when I went to change my bedding I found a single bed bug (pictured below (crushed in the photo)) under my bedsheet.
I stripped the bed and checked the mattress and bed frame - found no other evidence of them. No damp spots on the mattress (including the seams), no obvious signs of eggs or other live bugs, no blood. I threw away the mattress protector and washed the bedding. I sprayed the bed frame/under the bed with bed bug spray and vacuumed the mattress before putting my clean sheets back on later. My bed is already pushed away from the wall slightly.
While I can't be certain, it seems the little bastard may have migrated from my visit the day before, and the lack of other signs of bugs supports that. I seem to have a bite on my leg, so it may have fed. I'm not sure if anyone can tell if it looks male or female to know if it may have laid eggs? Does it look like it fed recently in the picture?
My plan was to get one of those zip-up plastic mattress covers, and possibly a steam cleaner since I don't think I can wash all my clothes at 50 Celsius without ruining them and I have a low-heat tumble dryer.
I can't use interceptors as I have an ottoman style bed where the frame touches the floor all the way around. Using double-sided tape would also probably be suboptimal as the frame is upholstered and my bed sheets would likely drape over the side of my bed and stick to it.
I thought about getting canine detection but from my brief research have heard mixed things, not sure if that is a good way to go or not.
I've also seen people recommending Diatomaceous Earth, but also seen that it can be toxic and doesn't slow them down that much? I'm UK based if that makes a difference for what treatments are even available. This is in a house, not apartment, and I'm the owner so I'm responsible for dealing with it.
Is my initial plan for plastic covers, a steam cleaner and simple vigilance enough for now or do I need to go further?