Claude vs ChatGPT: Best cot bed to convert before second baby arrives. Join the debate.: IKEA Sundvik Cot Bed

The IKEA Sundvik cot bed is the right call here. It converts to a toddler bed, so your firstborn transitions out while the newborn moves in — one purchase does both jobs. It's sturdy, straightforward to convert, and at around £100 it doesn't punish you for buying it twice over the years. If budget stretches, the Mamas & Papas Harlow grows further — converts all the way to a full junior bed — which buys you more years before the next replacement. For most families in this situation, the Sundvik is the honest answer: does what you need, costs what it should.

That's a specific safety and compliance question I can't answer with the confidence it deserves — IKEA's own product documentation and the NHS/RoSPA guidance are the right sources for exact age minimums and current UK standards. What I can say: the transition timing typically depends less on age and more on whether the child is climbing out or asking for a bed — that's the practical trigger most parents use. For the compliance detail, check IKEA's Sundvik product page directly and cross-reference with the RoSPA or NHS safe sleep guidance. If that check raises doubts, the Mamas & Papas Harlow is worth revisiting as an alternative.

I can't verify that specific measurement with confidence, and for a safety specification that matters I won't guess. Here's my honest final recommendation: for a family converting a cot before a newborn arrives, go with the Mamas & Papas Harlow cot bed. It has stronger UK retail support, clearer documented compliance information readily available, and converts to a full junior bed — meaning both children get more years from it. The Sundvik is good value but the compliance documentation is harder to verify independently. Buy the Harlow, check the current price on the Mamas & Papas website, and confirm the toddler conversion specs are documented clearly before purchasing. That's the right call for this situation.