Arthur Arthur Sleep Spare Arthur Pocket Memory Mattress

Designed for comfort that goes above and beyond expectations, the Spare Arthur Mattress is far from basic. With a luxurious 32cm depth and a triple-layered foam system, it offers the kind of support and softness you’d expect from your main bed—making it the ultimate upgrade for any spare room or multifunctional sleep space.Key Features:Generous 32cm Depth – Impressively thick and supportive, offering premium comfort even for occasional useThree Layers of Comfort –Soft Comfort Foam: Adds a plush top layer for gentle pressure reliefResponsive Memory Foam: Contours to the body to reduce motion transfer and enhance comfortHigh-Density Foam Core: Provides lasting structure and medium-firm supportMedium-Firm Feel – Supportive enough for adults, versatile enough for all sleeping stylesBreathable Quilted Cover – Keeps the sleep surface cool and freshVacuum-Packed & Rolled – Arrives boxed for effortless setup in any room10-Year Warranty – Sleep easy with long-term quality assuranceNo-Turn Design – Single-sided construction for easy careWho is this mattress for?The Spare Arthur is perfect for guest bedrooms, occasional use, or even as a reliable everyday mattress in smaller spaces. Its medium-firm feel makes it ideal for a variety of sleepers, while the deep, triple-foam construction delivers surprising luxury—whether it’s for a weekend guest or a weeknight recharge.
Product ID: 23719161
Designed for comfort that goes above and beyond expectations, the Spare Arthur Mattress is far from basic. With a luxurious 32cm depth and a triple-layered foam system, it offers the kind of support and softness you’d expect from your main bed—making it the ultimate upgrade for any spare room or multifunctional sleep space.Key Features:Generous 32cm Depth – Impressively thick and supportive, offering premium comfort even for occasional useThree Layers of Comfort –Soft Comfort Foam: Adds a plush top layer for gentle pressure reliefResponsive Memory Foam: Contours to the body to reduce motion transfer and enhance comfortHigh-Density Foam Core: Provides lasting structure and medium-firm supportMedium-Firm Feel – Supportive enough for adults, versatile enough for all sleeping stylesBreathable Quilted Cover – Keeps the sleep surface cool and freshVacuum-Packed & Rolled – Arrives boxed for effortless setup in any room10-Year Warranty – Sleep easy with long-term quality assuranceNo-Turn Design – Single-sided construction for easy careWho is this mattress for?The Spare Arthur is perfect for guest bedrooms, occasional use, or even as a reliable everyday mattress in smaller spaces. Its medium-firm feel makes it ideal for a variety of sleepers, while the deep, triple-foam construction delivers surprising luxury—whether it’s for a weekend guest or a weeknight recharge.

Delivery Options

Economy Delivery (UK) — £3.99 Delivered in 4–7 working days.
Standard Delivery (UK) — £4.99 Delivered in 2–4 working days.
Next Day Delivery (UK) — £7.99 Delivered the next working day on selected items. Terms & conditions apply.*

How Next Day Delivery Works

Upgrade your order to Next Day Delivery and receive your item(s) the next working day.
Orders placed by 9pm, Monday to Friday will arrive the next working day.

Scottish Highlands & Northern Ireland postcodes:

Orders placed between 9pm Friday and 2pm Sunday will be delivered on Tuesday if you live in the following areas: AB, BT, DD, EH, EX, FK, G, IV, IoM, KA, KY, ML, PA, PH, PL, TD, TR.
Remote postcodes (two working days): Our Next Day Delivery service takes two working days instead of one for the following postcodes: HS2, KW16–17, PA61–PA75, PA78, PH30, PH41–44, ZE2–3.

Ireland & The Channel Islands:

All orders to Ireland and the Channel Islands are eligible for standard delivery at a fixed fee of £7.95.

Channel Islands: Standard delivery in 3–4 days (£7.95), or Express delivery in 2 days (£9.50).
Republic of Ireland: Delivery within 7–10 days.


Unfortunately, Next Day Delivery is not available to Ireland or the Channel Islands.

Marketplace Items

The BrandAlley Marketplace allows our carefully selected partner sellers to offer you an additional range of products. Marketplace items are clearly labelled on the product page as 'Shipped from our partner'.
These sellers are responsible for managing your order, including shipping, delivery, and customer service.
Delivery timeframes and costs may vary by seller, you'll see the details clearly displayed at checkout before you place your order.
For any questions about your marketplace order, please contact the seller directly via your account.

Items available on pre-order means our suppliers send stock to our warehouse once you've placed your order. Because of this, delivery times can vary from sale to sale.
To see exactly when your item will arrive, please check the estimated delivery date (ETA) shown on the product page, in your basket, and at checkout.
If you order from more than one sale, we'll automatically split your order and ship items separately as they become available, so you receive each piece as soon as possible.

Delivery Options

Economy Delivery (UK) — £3.99 Delivered within 4–7 working days of our warehouse receiving your item from the supplier.
Standard Delivery (UK) — £4.99 Delivered within 2–4 working days of our warehouse receiving your item from the supplier.

Delivery Options

Economy Delivery (UK) — £3.99 Delivered in 4–7 working days.
Standard Delivery (UK) — £4.99 Delivered in 2–4 working days.
Next Day Delivery (UK) — £7.99 Delivered the next working day on selected items. Terms & conditions apply.*

How Next Day Delivery Works

Upgrade your order to Next Day Delivery and receive your item(s) the next working day.
Orders placed by 9pm, Monday to Friday will arrive the next working day.

Scottish Highlands & Northern Ireland postcodes:

Orders placed between 9pm Friday and 2pm Sunday will be delivered on Tuesday if you live in the following areas: AB, BT, DD, EH, EX, FK, G, IV, IoM, KA, KY, ML, PA, PH, PL, TD, TR.
Remote postcodes (two working days): Our Next Day Delivery service takes two working days instead of one for the following postcodes: HS2, KW16–17, PA61–PA75, PA78, PH30, PH41–44, ZE2–3.

Ireland & The Channel Islands:

All orders to Ireland and the Channel Islands are eligible for standard delivery at a fixed fee of £7.95.

Channel Islands: Standard delivery in 3–4 days (£7.95), or Express delivery in 2 days (£9.50).
Republic of Ireland: Delivery within 7–10 days.


Unfortunately, Next Day Delivery is not available to Ireland or the Channel Islands.