You wash your bedding every week or two, but the mattress underneath usually gets ignored for years. Considering we spend around a third of our lives on it, the mattress deserves more attention than it gets.
The short answer
A deep clean every six to twelve months works for most households. Go for the shorter end if you have allergies, pets that sleep on the bed, young children, or if anyone sweats heavily at night.
What actually builds up in a mattress
- Dust mites and their droppings, a major trigger for asthma and allergies
- Dead skin cells, which feed the dust mites
- Sweat and body oils that soak through sheets
- Stains from spills, pets and little accidents
None of this is visible from the outside, which is why a mattress can look fine and still be the dirtiest thing in the bedroom.
What you can do yourself
Vacuum the mattress with the upholstery attachment when you change the sheets, air the room daily, and use a washable mattress protector. Sprinkling bicarbonate of soda, leaving it for an hour and vacuuming it off helps with light odours.
What a professional clean adds
Professional hot water extraction reaches deep into the mattress, kills and removes dust mites, lifts sweat marks and stains, and leaves the mattress fresh and dry within a few hours. It is especially worth doing for allergy sufferers, after illness, when moving into a new home with existing mattresses, or for a mattress that has never been cleaned.
Need a hand? Send a photo of the job to Pepa Cleaning on WhatsApp and we will reply with a price, usually within minutes. We cover Hampton, Twickenham, Richmond, Kingston and the rest of South West London.

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