Thermal onesie to cut heating bills? The alternative winning fans in Spain

Dress like a skier and turn the heating down: the strategy dividing opinion

With the energy crisis squeezing household budgets, more and more homes are looking for ways to stay warm without breaking the bank. One solution making a strong comeback is the high-efficiency thermal onesie, those full-body suits that promise to keep you warm even when the thermostat drops below 18 degrees. The question is: does it really pay off, or is it just a quick fix?

The cost of a textile solution

Prices range from 399 euros for models like the one sold by Varusteleka (a Finnish brand with military-grade quality) to Chinese imitations for under 50 euros on AliExpress. Fans of the thermal onesie argue that, with a good base layer and the right suit, you can stay comfortably warm without heating the whole house. The key is insulation: if your body is covered, the sensation is equivalent to being in a 21-22 degree environment, even when the thermostat reads 15.

Technical clothing vs. traditional heating

Some people prefer more versatile garments, like a reflective fleece or a technical fleece that lets you move freely. One user says his work fleece, which never picks up bad odours, allows him to stay at home all winter without heating, though he admits the neighbours give him odd looks through the curtains when they see him in that outfit. The batamanta (a wearable blanket, or blanket dress) also comes up as a budget option, especially popular among certain groups for popping out to buy bread.

The risks of a low-cost strategy

That said, it's not all upside. One ironic comment asks: "And what about your lungs — how do you warm those?" Indeed, keeping your torso warm doesn't stop the cold air you breathe from affecting your airways, especially for people with asthma or sensitivities. What's more, comfort isn't just about temperature: humidity and ventilation matter too. Wearing a onesie all day can cause sweating trinc by chilling if moisture management isn't handled properly.

The verdict from experience

The most seasoned preppers recommend not wearing the thermal onesie as your only garment, but combining it with layers that let you regulate temperature. Models like the Hart Oakland 2 are cited as an exceptional option for extreme cold, but not as an everyday solution. In the end, the decision comes down to how much you're willing to sacrifice in looks and comfort for savings on your gas bill. With energy prices at record highs, maybe wearing a onesie at home isn't such a crazy idea after all.