A package (320) comprising a stack of absorbent articles (20) which are bi- or tri-folded, and each article comprises a topsheet, a backsheet, and an absorbent core (28) between the topsheet and the backsheet. The absorbent core comprises an absorbent layer comprising a central portion (60), a first side portion (61) and a second side portion (62), a first folding guide (261) between the central portion and the first side portion, and a second folding guide (262) between the central portion and the second side portion. Each side portion comprises a plurality of winglets (610-613, 620-623), each winglet having a proximal side (6200, 6210, 6220) relative to a folding guide and extending outward from this proximal side. Neighboring winglets are separated by a gap between their neighboring sides. When the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin and the gaps between the winglets decrease, the neighboring sides optionally coming into contact. The articles in the package are either bi-folded along a transversal fold line (90) and are compressed at an In-Bag Compression Rate of from 5% to 50%, or the articles are tri-folded along a first fold line (304) and a second fold line (306) parallel to the transversal direction.