Cell membrane is made of a phospholipid bilayer sandwiched between two layers of globular protein.
The polar (hydrophilic) heads of phospholipids are oriented towards the protein layers forming a hydrophilic zone.
The nonpolar (hydrophobic) tails of phospholipids are oriented in between polar heads forming a hydrophobic zone.
Though the phospholipid bilayer is probably accurate, there are problems with the Davson- Danielli model:
Not all membranes are identical or symmetrical.
Membranes with different functions also differ in chemical composition and structure.
Membranes are bifacial with distinct inside and outside faces.
A membrane with an outside layer of proteins would be an unstable structure.
Membrane proteins are not soluble in water, and, like phospholipid, they are amphipathic.
Protein layer not likely because its hydrophobic regions would be in an aqueous environment, and it would also separate the hydrophilic phospholipid heads from water.