We check the exact model and retailer listing before adding a product to our comparison catalogue. Each record identifies its sources and the date checked.
What a dimension means
External dimensions describe the frame or complete footprint where stated. Mattress dimensions describe a different measurement. We do not use an unresolved ladder projection or a width measured only at the chest as a guaranteed room footprint.
Missing information stays visible
When a listing and manual disagree, we flag the conflict and hold the product out of fit results. A result means that the checked dimensions fit the numbers entered; it does not verify room access, assembly, clearance, age suitability or a safe installation.
Research and testing
Current catalogue comparisons are researched, not hands-on tests. We do not award imported expert scores or reproduce customer ratings as our own assessment. Older pages carry their original dates and an archive notice until reviewed.