Clearing an infestation is a race against reproduction: EPA notes a female may lay one to three eggs a day and 200 to 500 across a lifespan of six to twelve months.
What to do about bed bugs, in order: contain the room, wash and heat what you can, then book a licensed operator. The the pest section covers the other calls, and Emergency Services 24H routes treatment to licensed operators nearby.
Nothing kills them instantly in a whole house.
A bed bug heating treatment raises the room above the temperature the insects survive.
An exterminator quotes cost for bed bug work by room count rather than by visit, and a bed bug professional will say plainly that a bed bug killer spray alone does not eliminate pests once a bed bug infestation is established.
Bed bug interceptors, sold as an interceptors pack or a bed bug blocker, monitor whether it worked. A heater treatment reaches the bed bug home behind skirting and headboards that a spray never touches, and wasp nest removal is the other job worth leaving to a bug professional.
What to do tonight
What are the right first moves?
Stay in the same room, and bag and heat-treat the bedding rather than carrying loose linen through the house. Leave the furniture where it is for inspection.
Those four decisions cost nothing and they decide whether this is a one room problem or a whole floor one.

