Independent comparisons. We may earn from shop links. More info

Bed bug aerosol or spray

Updated: 22 October 2026

You are holding two amazon.co.uk tabs: a Zero In aerosol and the NOPE! trigger, and the titles both say they treat mattresses. A bed bug aerosol or spray, in this set, is that format choice, not a fogger and not a whole-building treatment. For a first can on a mattress and frame, when you can leave the room and you want the largest review file, take the Zero In two-pack aerosol. Take the NOPE! trigger when the egg sentence and the longer residual claim are the reason you are paying more per litre. The [Bed bug spray](/hub/pest-control/bed-bug-spray) table keeps all five listings. Prices are the saved listings of 20 October 2026. Peter F., editor for DIY & tools at productscompared.co.uk, did not run a lab test. A purchase through our links can earn a commission at no extra cost to you.

You are holding two amazon.co.uk tabs: a Zero In aerosol and the NOPE! trigger, and the titles both say they treat mattresses.

Our top picks

Zero In Zero In bed bug and dust mite killer, two-pack

Best overall

Zero In Zero In bed bug and dust mite killer, two-pack
7.8/10about £11.00
View offer
NOPE! NOPE! bed bug killer spray, 500 ml

Alternative

NOPE! NOPE! bed bug killer spray, 500 ml
7.6/10about £13.99
View offer
Pestshield Pestshield bed bug and flea spray, six-pack

Best value

Pestshield Pestshield bed bug and flea spray, six-pack
5.6/10about £11.99
View offer
On this page
  1. 1.What you are actually choosing
  2. 2.When the Zero In aerosol fits
  3. 3.When the NOPE! trigger fits
  4. 4.The recommendation, and where it stops

What you are actually choosing

An aerosol throws a fine spray across a mattress edge, a headboard and the skirting, and it is easy to overshoot onto linen you should have removed. A trigger puts a wetter dose on a seam or a crack you can see. Both formats are in this comparison. Room foggers are not. The NHS still says do-it-yourself treatment is unlikely to clear an infestation, whichever nozzle you prefer.

When the Zero In aerosol fits

Choose the two-pack, ZER968, two 300 ml aerosols, 600 ml at £11.00, when you want 4.2 from 8,217 reviews and a quick pass on mattresses, beds, furniture and skirting. That is the largest file in the set. Longer reviews describe fewer bites when the spraying is repeated and paired with washing or steaming. The claim you are buying is over two weeks, not three months, and not eggs. Fumes are described as choking, and one buyer left two bed bugs alive two hours after a direct spray. If you are home all day and cannot leave, this format is a bad fit. The £6.99 title says water-based, but the form is aerosol.
Zero In Zero In bed bug and dust mite killer, two-pack

Testsieger

Zero In Zero In bed bug and dust mite killer, two-pack
7.8/10about £11.00
View offer

When the NOPE! trigger fits

Choose NOPE! when you want to aim at seams, frames and carpet edges with a water-based liquid, and the egg line is on your checklist. The listing names carpets, floors, soft furnishings, bed frames and mattresses. Saved reviews include bites stopping after a holiday or a visitor, and one case of two sprays about ten days apart. That second pass matches the fact that eggs can still hatch in about a week, even though the bottle mentions eggs. About £28 a litre is the highest unambiguous price per litre here. Some reviews report no kill on a bug that was sprayed directly, and bugs that later walked a treated frame. HSE registered is printed without an approval number. The pet question and the all-fabrics question are unanswered. Cypermethrin is very toxic to aquatic life. People and pets stay out until it is dry. Medway Council says at least 15 days before vacuuming treated areas.

The recommendation, and where it stops

For one bed you can leave, buy the Zero In two-pack aerosol if the decision is evidence and a named pair of actives at £11.00. Buy the NOPE! trigger if you are paying £13.99 specifically for cypermethrin, the egg line and the longer residual claim, and you will come back about ten days later rather than trust one wetting. The best bed bug spray UK page is that evidence pick. Neither format replaces washing bedding at 60°C and a hot tumble dry. If a soaked insect is still alive hours later, a second format of pyrethroid is a weak next step. The BPCA has described pyrethroid resistance as widespread. More than one room means the council or a pest controller, not a change of nozzle.

Common questions

Is an aerosol better on mattress seams than a trigger?
The aerosol covers an edge and the skirting. The trigger is easier on a seam. NOPE! is the trigger with an egg line. For a first pass you can leave, the Zero In two-pack leads on reviews. For a later pass on joints, the trigger fits.
Do the residual claims mean the bugs are gone?
Zero In says over two weeks. NOPE! says up to three months. This page did not time either claim. Eggs can still hatch in about a week, and vacuuming that week strips the film. Leave the residue and look again.
The £6.99 can says water-based. Is that the trigger?
No. That Zero In title says water-based and 2 × 300 ml. The form is aerosol and the volume field is 300 ml. One buyer received 300 ml after expecting 500 ml. The water-based trigger here is NOPE!, 500 ml, with cypermethrin named.
Will one aerosol or one trigger clear a flat?
No. A two-pack or a 500 ml bottle is one room you can leave. The BPCA warns that amateur spraying can spread bed bugs. Reviews include direct sprays that missed. Insects in a second room need the council or a pest controller, not a new nozzle.
Can I use either format on sheets?
Take the linen off, wash it at 60°C, and tumble dry on hot for at least 30 minutes. Both formats name mattresses or frames, not a soaked sheet. Pillow questions on the Zero In pages are unanswered. Spraying the bedding skips the laundry.
Is either safe for cats once it is dry?
Neither listing says so. The pet question is unanswered. One review mentions a dog sneezing. Another treated a cat bed only after the pets were out. Stay out until the surface is dry. Cypermethrin is very toxic to aquatic life.

Related pages

Bed bug spray buying guide

How to use bed bug spray

Bed bug spray

Best bed bug spray UK: named active, large review file

Bed bug spray for a mattress and frame, not sheets

Sources

Public UK sources used for this comparison. Shelf prices, stars and review counts are the amazon.co.uk figures captured for these five listings on 20 October 2026. An HSE wording without a printed number was not checked against the HSE product list.

  1. NHS, Bedbugs (retrieved 20 October 2026)
  2. HSE, Using biocides (retrieved 20 October 2026)
  3. HSE, UK authorised biocidal products (retrieved 20 October 2026)
  4. HSE, COPR (retrieved 20 October 2026)
  5. BPCA, controlling bed bugs (retrieved 20 October 2026)
  6. BPCA, Bed bugs in 2024 (retrieved 20 October 2026)
  7. Medway Council, before and after bedbug treatment (retrieved 20 October 2026)