Why do ikea mattresses need 72 hours

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Last updated: April 8, 2026

Quick Answer: IKEA mattresses require 72 hours (3 days) to fully expand and off-gas after being compressed for shipping. This timeframe allows the memory foam or polyurethane foam layers to regain their original shape and firmness. The 72-hour period also lets volatile organic compounds (VOCs) dissipate to safe levels, typically reducing by 90% within this timeframe. IKEA introduced this recommendation around 2015 as they expanded their mattress line with more foam-based models.

Key Facts

IKEA recommends 72 hours (3 days) for mattress expansion
Compressed mattresses can expand to 95-100% of original size within 72 hours
VOC levels typically reduce by 90% during the 72-hour off-gassing period
IKEA introduced this recommendation around 2015
Most IKEA mattresses are compressed to 1/3 their original size for shipping

Overview

IKEA mattresses require a 72-hour expansion period due to their compressed shipping method, which has become standard for the company's global logistics. Since IKEA's founding in 1943 in Sweden, the company has pioneered flat-pack furniture to reduce shipping costs and environmental impact. The mattress compression process began gaining prominence in the 2000s as IKEA expanded internationally to over 50 countries. By 2015, IKEA was selling approximately 15 million mattresses annually worldwide, with most being vacuum-sealed and compressed to about one-third their original size. This innovation allows IKEA to ship mattresses more efficiently, reducing transportation costs by up to 80% compared to traditional mattress shipping methods. The 72-hour recommendation emerged as IKEA introduced more foam-based mattress models that required specific expansion protocols to ensure customer satisfaction and product longevity.

How It Works

The 72-hour expansion process involves several physical and chemical mechanisms. When IKEA mattresses are manufactured, they contain memory foam, polyurethane foam, or latex layers that are vacuum-sealed and compressed using industrial machinery that applies up to 2,000 pounds of pressure. This compression removes approximately 90% of the air from the foam cells. Upon unboxing, atmospheric pressure causes the foam to gradually reabsorb air through a process called "recovery expansion." The foam cells typically regain 95-100% of their original volume within the first 48-72 hours. Simultaneously, off-gassing occurs as volatile organic compounds (VOCs) like formaldehyde and toluene—byproducts of foam manufacturing—dissipate into the air. The 72-hour timeframe allows these compounds to reduce to safe levels, typically dropping from initial concentrations of 0.5-1.0 mg/m³ to below 0.1 mg/m³, which meets indoor air quality standards.

Why It Matters

The 72-hour expansion period significantly impacts customer experience, product performance, and environmental sustainability. Proper expansion ensures mattresses achieve their intended firmness and support, preventing premature sagging that could reduce mattress lifespan from the typical 7-10 years to just 3-4 years. For consumers, following this protocol prevents discomfort and potential health issues from residual VOCs, which can cause headaches or respiratory irritation if mattresses are used immediately. Environmentally, compressed shipping reduces IKEA's carbon footprint by allowing 3-4 times more mattresses per truckload, decreasing transportation emissions by approximately 60%. This efficiency supports IKEA's sustainability goals to become climate positive by 2030 while making mattresses more affordable through reduced shipping costs passed to consumers.