Furniture and sleep

Furniture cost per night and per working day

Nothing in this category uses a single unit of electricity, which makes it the purest form of the question this site asks. A mattress costs what it costs and then does nothing but sit there for eight years. Divided across those years the difference between a cheap one and a good one turns out to be small enough that most people are anchoring on entirely the wrong number when they stand in the shop.

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Cost per night: what a mattress really costs22 August 2026A mattress has no running cost and lasts years. Divided properly, the gap between a cheap one and a dear one is about {{cost_budget-replaced}} a night.

Everything we have priced in this room

Priced at the tariffs shown in the bar at the top of the page. Sorted cheapest first.
Item	Running	Cost per use	Relative
Per night
Mattress	0p	25.7p	nothing to compare with yet
Per working day
Office chair	0p	28.7p	nothing to compare with yet

Open the calculator to put your own tariff, your own purchase price and your own usage against any row above.

Worked through

The cheapest and the dearest of the things here that are measured in the same unit, with every term of the sum shown, so you can see which part of the number is the part that actually matters.

Mattress, 25.7p per night

Cost per night, the working

Purchase, £750 over 2,920 nights25.68p

Cost per night25.7p

None.

Pure capital, no running cost, and used every single night. Divided across eight years the difference between a cheap mattress and a good one is measured in pennies per night, which is not how anybody feels about it in the shop.

The same sum, applied in kitchen, laundry and heating and damp. Or open the calculator and put your own numbers through it.

Prices used on this page

Electricity, 26.11p per kWh. Ofgem price cap, direct debit, average of England, Scotland and Wales, including 5% VAT.. Ofgem energy price cap unit rates and standing charges. Checked 22 August 2026.