We have bought a compressed mattress (mattress in a box but not from Aldi. The mattress will over about 24 hours regain its pre-compressed shape.
If you are after a cheap mattress, you possibly will also get a mattress in a box delivered cheaper than the one being sold at Aldi, like this one. It is worth shopping around as often Aldi specials are not real bargains but cater for impulsive buyers.
Choice has recently looked into mattresses including the mattress in a box types and provides some recommendations for selecting a mattress:
They have also reviewed different mattresses (member content):
The Aldi matress also only has 1 year warranty, which is extremely low and may say something about the expected life of the product. Many other mattress in a box retailer have very long warranties, such as Ikea have warranties as long as 25 years, but around 10 years is the norm.
The challenge with buying a mattress untested (namely lying on a mattress in a shop) is it may not meet your mattress preference (softness, support etc) and once home, one is reluctant to take it back for a swap or refund. If you do proceed with purchasing the Aldi matress, make sure your find out about their change of mind policy for the mattress just in case you do get it home and find out that it does not suit your needs/preferences for a good night sleep. Many mattress in the box type retailers allow exchange mattresses (‘free trial’) when the first one delivered does not suit (see the first Choice link above).
I’ve always factored the warranty in as a key indicator of vendor confidence in their own product, which in turn is also a trade-off with price and convenience (in original purchase, disposal and replacement ‘effort’). Which is to say I agree … and one year for a mattress? thats one change of sheets for my kids !!! they could throw the whole rancid lot out in one hit!
Edited to add: no haven’t bought one - nearest Aldi is 1500k away …