Insulated air mattresses have completely transformed this market, with much lighter, warmer and more comfortable offerings than what was possible with self inflatables. Exped have a wide range for different conditions, and so does Thermarest with a number of Neoair models. Personally I think in Europe you need a mattress that can cope with temperatures just below freezing, for early Spring and late Autumn, when you can still cycle comfortably during the day, and to cope with Alpine crossings in Summer. There are two mattresses that do this particularly well: the light (540 grams) and ultracompact Thermarest Neoair Allseason and the somewhat heavier and bulkier but cheaper Exped Synmat Basic 7.5. Other models will cope with rather colder or warmer weather. The Exped UL and Thermarest Neoair XLite models are a bit more fragile than the other models, and may be noisier. Comfort is a thing you have to decide on for yourself. There are those who prefer the longitudinal construction of the Exped mattresses, but equally there are those who much prefer the transverse construction of the Neoairs. The best pillow that I know is the Exped Airpillow.
Willem